Rust Requires Chilkat v11.0.0+

Export a Certificate's Private Key to Various Formats

See more Certificates Examples

Loads a digital certificate and private key from a PFX file (also known as PKCS#12) and exports the private key to various formats: (1) PKCS8 Encrypted, (2) PKCS8 Encrypted PEM, (3) PKCS8 unencrypted, (4) PKCS8 PEM unencrypted, (5) RSA DER unencrypted, (6) RSA PEM unencrypted, (7) XML. Rust

let cert = chilkat::Cert::new();

// Load from the PFX file
let pfx_filename = "/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx".to_string();
let pfx_password = "test".to_string();

// A PFX typically contains certificates in the chain of authentication.
// The Chilkat cert object will choose the certificate w/
// private key farthest from the root authority cert.
// To access all the certificates in a PFX, use the 
// Chilkat certificate store object instead.
if cert.load_pfx_file(&pfx_filename, &pfx_password).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Get the private key...
let priv_key = chilkat::PrivateKey::new();
if cert.get_private_key(&priv_key).is_err() {
    println!("{}", cert.last_error_text());
    return;
}

// Export to various formats:

let password = "secret".to_string();
let mut path = String::new();

// PKCS8 Encrypted DER
path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.der".to_string();
if priv_key.save_pkcs8_encrypted_file(&password, &path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// PKCS8 Encrypted PEM
path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.pem".to_string();
if priv_key.save_pkcs8_encrypted_pem_file(&password, &path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// PKCS8 Unencrypted DER
path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8.der".to_string();
if priv_key.save_pkcs8_file(&path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// PKCS8 Unencrypted PEM
path = "/Users/chilkat/testData/privkeys/chilkat_pkcs8.pem".to_string();
if priv_key.save_pkcs8_pem_file(&path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

//  RSA DER (unencrypted)
path = "/Users/chilkat/testData/privkeys/chilkat_rsa.der".to_string();
if priv_key.save_pkcs1_file(&path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// RSA PEM (unencrypted)
path = "/Users/chilkat/testData/privkeys/chilkat_rsa.pem".to_string();
if priv_key.save_pem_file(&path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// XML (unencrypted)
path = "/Users/chilkat/testData/privkeys/chilkat.xml".to_string();
if priv_key.save_xml_file(&path).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

println!("Private key exported to various formats.");